Twenty-five Fields Medal winners signed a letter as OpenAI faces math credit and sponsorship disputes.

Twenty-five Fields Medal mathematicians signed an open letter arguing that AI labs threaten their intellectual work as the labs compete on math problems. The letter says rushed solutions leave no time for writeups, new methods, or citations, and it raises attribution and plagiarism questions. OpenAI withdrew its CalTech math event sponsorship after researchers criticized the company. An OpenAI proof remains unverified.

NYU professor Tristan Buckmaster accused OpenAI this week of pressuring him not to credit an Anthropic collaborator for an important math proof. Buckmaster also asked whether OpenAI used Codex work to produce its own proof over a marathon weekend of inference. The letter follows the Leiden Declaration, which a working group of mathematicians released in June to address how LLM proofs change their field.

For builders, the fight raises operational risks around training data provenance, attribution, and secrecy. Frontier labs can spend tens of millions of dollars using LLMs to beat original researchers to a proof, which incentivizes closed workflows. Teams that rely on Codex should track how credits flow to their inputs and outputs, because the same disputes will reach other scientific and creative fields.

Watch whether OpenAI publishes a verifiable proof and how it credits outside mathematicians. The Leiden Declaration offers recommendations for mathematicians, institutions, and policymakers as open research culture faces competitive pressure. If labs keep racing to proofs in secret, other scientific and creative fields should expect the same attribution and secrecy fights.

What matters

• Twenty-five Fields Medal mathematicians signed a letter warning AI labs threaten math credit and attribution.
• Builders should expect tighter scrutiny on model outputs, training data provenance, and researcher credit.
• Watch whether OpenAI verifies its proof and how labs handle attribution for Codex-assisted discoveries.

Why it matters

Watch whether OpenAI verifies its proof and how labs handle attribution for Codex-assisted discoveries.

This GenAI News article was prepared in original wording using reporting and materials published by TechCrunch AI. Source reference: https://techcrunch.com/2026/09/11/openais-feud-with-mathematicians-is-only-escalating/.

Drafted by the GenAI News review pipeline.